Bug 680647 - undefined variables in some tests cause leaks; r=dao

browser/base/content/test/tabview/browser_tabview_bug597248.js

@@ -22,7 +22,7 @@ function setupOne(win) {
   afterAllTabsLoaded(function () setupTwo(win), win);
 }
 
-let restoreWin;
+let restoredWin;
 
 function setupTwo(win) {
   let contentWindow = win.TabView.getContentWindow();

browser/base/content/test/tabview/browser_tabview_bug642793.js

@@ -15,7 +15,7 @@ function loadTabs (win) {
 function testTopOfStack(win) {
   registerCleanupFunction(function () { win.close(); });
   let cw = win.TabView.getContentWindow();
-  groupItem = cw.GroupItems.getActiveGroupItem();
+  let groupItem = cw.GroupItems.getActiveGroupItem();
   ok(!groupItem.isStacked(), 'groupItem is not stacked');
   groupItem.setSize(150, 150);
   groupItem.setUserSize();